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Available Now!Leuze
50136265
PRK3C.T3/PT-M8
Polarized Retro-Reflective Photoelectric Sensor, 0-3.6m, LED, Red, PNP, Connector, M8, Metal, 4-Pin
$252.00$252.00 -
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Available Now!Baumer
O300.GR-GW1T.72N
11110414
Diffuse Sensor, Background Suppression, Miniature, Pulsed Red LED, 10-30VDC, 30-300mm Sensing Distance Tw, qTeach, Push-Pull, Light/Dark Operate, M8 4-Pin Connector, 32.3 x 12.9 x 23mm (HWD), Rectangular, Plastic (ASA, PMMA) Housing, PMMA O
$178.49$178.49 -
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Available Now!Leuze
50133738
PRK3CL1.A3/4-M8.3, Non-Cancellable / No Returns
Polarized Retro-Reflective Photoelectric Sensor, 0-3m, Laser, Red, PNP, Connector, M8, Metal, 3-Pin, NCNR
$372.00$372.00 -
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Available Now!Takex
FX210J
Limited Stock Savings: 1 unit available at this price
Fiber Optic Cable, Coaxial Reflective, M4 Screw, 135mm Detect, 1 Trans and 9 Receiving Fibers, 1m
$56.64$56.64 -
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Available Now!Takex
FT105BC-CS
Fiber Optic Cable, 2m Length, Diameter: 2.2mm Cable and 1.5mm Core, 45R Bending Radius, Polyethylene Sheath with Plastic Core, -30 to +70°, for CS Color Sensor
$56.53$56.53 -
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Available Now!Pepperl+Fuchs
225030
ML100-8-H-350-RT/103/115B | Limited Stock Savings: 1 unit available at this price
Photoelectric Sensor, Background Suppression
$141.18$141.18 -
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Available Now!Autonics
BEN10M-TDT
Photoelectric Sensor, Thru-Beam, Compact, 10m, DC Voltage, Solid-State Output (Transistor)
$79.00$79.00 -
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$54.00$54.00 -
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Available Now!Autonics
BEN5M-MFR
Photoelectric Sensor, Retroreflective, 0.1-5m, Free Power, Contact Output (Relay)
$76.00$76.00 -
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Available Now!Autonics
BEN3M-PDT
Limited Stock Savings: 1 unit available at this price
Photoelectric Sensor, Polarized Retroreflective, 0.1-3m, DC Volt, Solid-State Output (Transistor)
$68.05$68.05 -
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BF4RP
Limited Stock Savings: 1 unit available at this price
Photoelectric Sensor, Fiber Optic Amplifier, PNP, Red LED, 12-24VDC
$73.17$73.17 -
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$361.69$361.69
Photoelectric sensors detect the distance, absence or presence of an object. These sensors are great for sensing long distances and detecting most materials.
Additional Sensor Categories:
Proximity | Ultrasonic | Pressure | Temperature | Level | Tilt
How Does a Photoelectric Sensor Work?
Generally a photoelectric sensor consists of the following:
- Transmitter - emits the light beam
- Receiver - detects the light beam and converts it to an electrical signal
Photoelectric sensors detect changes in the light beam caused by the presence/absence, movement or properties of an object.
Types of Photoelectric Sensors:
- Through-Beam (Thru-Beam)
- Transmitter and receiver are two separate units that are directly opposite of each other. The sensor detects when an objects breaks the light beam
- Great for long distance detection
- Ideal for conveyors, counting or monitoring door openings
- Retroreflective (Reflective Mode)
- Transmitter and receiver are in one housing; light beam is reflected back by a reflector. Detection is triggered when an object breaks the beam.
- Medium range detection and easier to install than a through beam
- Ideal for package detection and pallet positioning
- Diffuse (Proximity Mode)
- The transmitter and receiver in one housing; the sensor detects light reflected directly off the target object (no reflector needed)
- Best for short range applications
- Ideal for detecting objects on assembly lines, verifying presence or checking fill level
- Specialized Types:
- Background Suppression: Can ignore objects beyond a set distance, focuses close range
- Color or Contrast Sensors: Detects specific colors or contrast differences
- Distance Measuring Sensors: Mesaure the distance to an object
Categories Related to Photoelectric Sensors:
- Stack lights - signal towers visually communicate the data or alerts that the photoelectric sensors are generating
- Smart relays - photoelectric sensors provide input signals which can process the data and control outputs
- Pushbuttons and estops - if your sensor detects a fault, an operator can use a pushbutton to reset the system
- HMIs - HMIs can dispay the data from the photoelectric sensor which allows you to monitor processes